Re: number dot (with space)

*To*: mathgroup at smc.vnet.net*Subject*: [mg99809] Re: number dot (with space)*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Fri, 15 May 2009 04:18:10 -0400 (EDT)*Organization*: Uni Leipzig*References*: <gugars$ekm$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de

Hi, you have given an floating point number and not an exact one (1. instead of 1 or 0.5 instead of 1/2). Floating point numbers have a finite precision, so that 1.*g is not the same as 1*g. Since Mathematica does not print the multiplication symbol "*" and uses a space instead to print a*b*c and a b c the multiplication 1.*g is printed as 1. g Regards Jens Emin Gahramanov wrote: > Hi guys, > sorry for the silly question (I am a Mathematica dummy). I have integrated > out an expression, and I do not know how to interpret the term like this: > (-1. g + r)^4) > What throws me off is "1. g" (g is a parameter), what is that dot after one > and there is also a SPACE after the dot and before "g" symbol. Sometimes I > get smth. like "1. r" what is that supposed to mean? If r=2, then how to > interpret the latter? Is it 1.2?? Or? Thanks. >